Patent Number: 6,166,105

Title: Process for making an ink jet ink

Abstract: A process for making an ink jet ink comprising: a) providing a dispersion containing a pigment, a hydrocarbon carrier and a polyamine/fatty acid condensation polymer dispersant; b) mixing the pigment dispersion with rigid milling media less than 100 .mu.m; c) introducing the mixture of step (b) into a mill; d) milling the mixture from step (c) until the pigment particle size is below about 100 nanometers; e) separating the milling media from the mixture milled in step (d); and f) diluting the mixture from step (e) to obtain an ink jet ink having a pigment concentration suitable for ink jet printers.

Inventors: Santilli; Domenic (Webster, NY), Romano, Jr.; Charles E. (Rochester, NY), Erdtmann; David (Rochester, NY)

Assignee: Eastman Kodak Company

International Classification: C08G 73/00 (20060101); C08G 73/02 (20060101); C09D 11/00 (20060101); C09D 011/10 (); C08G 073/04 (); C08L 039/04 ()

Expiration Date: 12/26/2017